pixelart - yes, you can! generate your own pixel art images (off-blockchain) using any design (in ascii text) in any colors; incl. 2x/4x/8x zoom for bigger sizes

Best rails admin panel. Great mechanism for customization and rapid development

Image processing via MiniMagick for Refile

Open source Ruby on Rails photo gallery engine designed for integration with Refinery CMS.

Simple and real-life tested Rails::Engine admin interface

Simply optimize CarrierWave images via image_optim

Overlay build information on top of your app icon

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IconBanner adds custom nice-looking banners over your mobile app icons

Ruby library to convert images to usable & printable ZPL code

Jekyll-favicon is a jekyll plugin that adds the tag favicon, generating html tags for favicon.

Knowledge Base is a bunch of models for Ruby on Rails that you probably need to build your own

Kuhsaft is a Rails engine that offers a simple CMS.

Magento Ruby library

Optical mark recognition of multiple-choice tests and surveys. Low-level ruby library to generate response sheets in PDF form and to automatically score manually filled-out forms.

The peoplefinder provides searchable staff profiles for your organisation. Since it's a rails engine, you can re-skin it for your organisation.

Ruby on Rails 7 engine to manage your website's articles, categories and media.

Sunrise is a Open Source CMS

Extends Watir to take stitched-together screenshots of full web pages.

Administrative and social network platform for closed user groups.